From: Dirk Behme <dirk.behme@googlemail.com>
To: Alexander Voropay <a.voropay@equant.ru>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Add MIPS ELF loader
Date: Thu, 30 Mar 2006 19:34:59 +0200 [thread overview]
Message-ID: <442C16C3.1000105@gmail.com> (raw)
In-Reply-To: <146901c65406$4d029670$e90d11ac@spb.in.rosprint.ru>
Alexander Voropay wrote:
> I'm trying to implement a mips_bios, unfortunately, quemu seems can't
> run a code at the 0xbfc00000 region.
>
> See a http://pastebin.com/628591
>
> The conventional 'move k0,zero' instruction (line 35) causes an general
> exceprion to 0xbfc00380, see line 70
Try to change the following lines in hw/mips_r4k.c:
//#define KERNEL_LOAD_ADDR 0x80010000
#define KERNEL_LOAD_ADDR 0xBFC00000
//cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
cpu_register_physical_memory(0x1fc00000, ram_size, IO_MEM_RAM);
//kernel_size = load_image(kernel_filename,
// phys_ram_base + (kernel_base - 0x80000000));
kernel_size = load_image(kernel_filename, phys_ram_base);
Works for me:
(gdb) p/x $pc
$1 = 0xbfc00000
(gdb) x/2i $pc
0xbfc00000 <_start>: b 0xbfc00400 <reset>
0xbfc00004 <_start+4>: nop
(gdb) x/2i 0x1fc00000
0x1fc00000: b 0x1fc00400
0x1fc00004: nop
(gdb)
Best regards
Dirk
next prev parent reply other threads:[~2006-03-30 17:34 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-28 6:57 [Qemu-devel] [PATCH] Add MIPS ELF loader Dirk Behme
2006-03-28 13:01 ` Thiemo Seufer
2006-03-30 13:40 ` Dirk Behme
2006-03-30 13:53 ` Thiemo Seufer
2006-03-30 14:29 ` Alexander Voropay
2006-03-30 17:34 ` Dirk Behme [this message]
[not found] ` <442C0F57.3010200@gmail.com>
2006-04-02 12:54 ` Alexander Voropay
2006-04-23 17:16 ` Fabrice Bellard
2006-04-25 23:57 ` Thiemo Seufer
[not found] <154e01c66453$111e4f20$e90d11ac@spb.in.rosprint.ru>
2006-04-20 10:16 ` Marius Groeger
2006-04-20 10:28 ` Thiemo Seufer
2006-04-20 11:02 ` Alexander Voropay
2006-04-20 12:19 ` Alexander Voropay
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